Best AI Chrome extensions in 2026: an honest guide

What to look for

• Model access — one lab's model or several?
• Placement — side panel, overlays, separate browser?
• Control — drafts you review or an agent that acts?
• Privacy — what's stored and where?
• Pricing — free tier, trial, one plan or many?

The list

Chat with all AI our product

GPT-6.1, Claude 5.5, Fable 5.2, Muse and Grok 4.7 in Chrome's side panel, with page answers, email and WhatsApp drafts, a code assistant and images. 3 free requests without an account; Pro from $5.99/week. Best for people who want model choice without clutter.

Sider

Sider is a popular AI sidebar that bundles chat with several well-known models, reading and writing tools, and extras such as group chat that sends one prompt to multiple models. Good for: large feature set for reading and writing. Compare with Chat with all AI.

Monica

Monica is an all-in-one AI assistant available as a browser sidebar and as apps. It covers chat with several models, summarizing, translation, writing, image tools and search. Good for: available across browser, desktop and mobile. Compare with Chat with all AI.

MaxAI

MaxAI is known for one-click actions on selected text — summarize, explain, translate, rewrite and reply — and for adding AI to search results and popular websites. Good for: fast actions right where you select text. Compare with Chat with all AI.

Merlin

Merlin is an AI chat sidebar with features like web search, summaries of videos and documents, and team plans. Good for: built-in web search. Compare with Chat with all AI.

HARPA AI

HARPA AI is a power-user extension focused on automation: custom commands, page monitoring and alerts, and the option to bring your own API keys. Good for: custom multi-step commands. Compare with Chat with all AI.

Claude in Chrome

Claude in Chrome is Anthropic's own extension. It brings Claude into Chrome and can take actions in the browser for you, and it works with your Claude account and plan. Good for: official product from the makers of claude. Compare with Chat with all AI.

Gemini in Chrome

Gemini in Chrome is Google's assistant built into the browser. It can answer questions about the pages and tabs you have open, using your Google account. Good for: built into chrome — nothing to install. Compare with Chat with all AI.

Grammarly

Grammarly is a writing assistant known for grammar, clarity and tone suggestions, with generative AI features for drafting and rewriting. Good for: best-known grammar and clarity checks. Compare with Chat with all AI.